Curb-bar



E. L. BENEDICT.

CURB BAR.

APPLICATION FILED DEC. 20, 1918. 1 ,3 1 1 A85. Patented July 29, 1919.

abtoun m3 THE COLUMBIA PLANOQRAPH co, WASHINGTON, D. c.

S ES ATEN EDWARD L. BENEDICT, OF BALTIMORE, MARYLAND, ASSIGNOR O13 ONE-HALF T0 ORVILLE O. ROBINSON, OF BALTIMORE COUNTY, MARYLAND.

CURB-BAR.

Specification of Letters Patent.

Patented July 29, 1919.

Application filed December 20, 1918. Serial No. 267,601.

To all whom it may concern:

Be it known that I, EDWARD L. BENEDICT, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Curb-Bars, of which the following is a specification.

This invention relates to protective bars for corners of concrete or plastered structures, and the purpose of the invention is to provide a bar Which can be manufactured with a minimum of expense, and which has means for effectively interlocking the bar with the cement-itious material.

In the accompanying drawing, which illustrates my invention,

Figure 1 is a plan view of a metal bar or strip from which the curb bar is made;

Fig. 2 is a similar View showing the loops expanded from the margins of the strip;

Fig. 3 is a perspective view, showing portion of the completely formed bar;

Fig. 4 is a section on the line 4-4 of Fig. 3;

Fig. 5 is a face view of a concrete curb, showing the protecting bar in position therein, the loops on the bar being shown in dotted lines; and,

Fig. 6 is a section on the line 66 of Fig. 5.

In manufacturing the curb bar according to my invention, the metal strip 1 is slitted at intervals adjacent its lateral edges, the relative arrangement of the slits being indicated by the dotted lines 2 and 3 in Fig. 1, and the portions of the bar thus sheared from the body of the strip are expanded into loops 4 and 5, as illustrated in Fig. 2. Thus, after the slitting and expanding operation, the bar comprises the body portion 6, having along its lateral edges the expanded loops connected together and to the bar by relatively short connecting portions 7, and the series of loops at one edge of the strip overlap the series of loops at the other edge, throughout the length of the bar. After Copies of the loops have been formed, the bar is passed through suitable rollers which give to thebody portion 6 of the bar an arcuate form, as shown in Figs. 3, 4,, and 5, and at the same time bend over the connecting portions 7 in the same direction so that in the completed bar, the loops 4 and 5 lie in substantially'parallel planes at the same side ofthe body portion. The connecting portions 7 being short, are easily bent to turn the loops at the proper angle to the body portion of the bar.

When the completed curb bar is arranged in a cement curb, for instance, the loops interlock with the cement, as shown in Fig. 6, and the body of the bar is thus tied or anchored to the cement at intervals along both lateral edges of the body of the bar. As the loops on the opposite sides of the body overlap one another, there is no part in the length of the bar which is not anchored in the cement by the loops.

The entire curb bar may be formed by two operations, one in which the metal strip is slitted and expanded, and the other in which the body of the strip is curved transversely and the loop portions are turned over at the proper angles to the body.

It will be observed that'in cross-section the bar has a U-form, the central or body portion of which is continuous, while each side of the bar is composed of a single series of relatively long loops and short connecting portions, the latter bent over at an angle to the adjacent portions of the body.

What I claim is:

A U-shaped curb bar comprising a metal strip having its marginal portions expanded into relatively long loops connected to the body of the bar by relatively short connecting portions, said connecting portions bent over at an angle to the adjacent portions of the body, and at the same side thereof, and forming, with the loops, the sides of the bar- In testimony whereof I afiix my signature.

EDWARD L. BENEDICT.

this patent may 'be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. 0. 

